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show global variables like 'wait_timeout';
结果:wait_timeout | 28800
设置
set global wait_timeout=604800;
set global interactive_timeout=604800;
重启mysql服务或者电脑
show global variables like 'wait_timeout';
结果:wait_timeout | 28800
设置
set global wait_timeout=604800;
set global interactive_timeout=604800;
重启mysql服务或者电脑